debug vs regular mode
On 2012-08-10 06:10, Zhang, Peng wrote:
Thanks to both for your reply. library(glmulti) testdata = cbind(Y=rnorm(100), data.frame(matrix(rnorm(100*50), ncol = 50))) glmulti(Y~(X1+X2+X3+X4+X5+X6+X7+X8+X9+X10+X11+X12+X13+X14+X15)*X16, data = testdata, level = 2) This is reproducible to get a segmentation fault.
There's some information missing here, notably the output from
'sessionInfo()', but I guess this is under GNU/Linux. I can confirm a
seg. fault under Fedora FC17 x86_64.
Under Windows 7 64-bit, however, we get some further info:
> library("glmulti")
Loading required package: rJava
> testdata = cbind(Y=rnorm(100), data.frame(matrix(rnorm(100*50), ncol
= 50)))
> glmulti(Y~(X1+X2+X3+X4+X5+X6+X7+X8+X9+X10+X11+X12+X13+X14+X15)*X16, data
+ = testdata, level = 2)
Initialization...
Error in .jnew("glmulti/ModelGenerator", y, .jarray(xc), .jarray(xq), :
java.lang.ArrayIndexOutOfBoundsException: 15
>
> sessionInfo()
R version 2.15.1 Patched (2012-08-06 r60178)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=Swedish_Sweden.1252 LC_CTYPE=Swedish_Sweden.1252
[3] LC_MONETARY=Swedish_Sweden.1252 LC_NUMERIC=C
[5] LC_TIME=Swedish_Sweden.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] glmulti_1.0.4 rJava_0.9-3
>
So, this doesn't seem to be a bug in R and is thus likely to need the
attention of the 'glmulti' package's maintainer.
HTH,
Henric
But I have troubles to extract the exact information from this S4 class to make a simpler example because of my limited knowledge on S4 class. The author of the package is busy at the moment, and does not have time to look into it. Peng On 08/09/2012 10:25 PM, R. Michael Weylandt <michael.weylandt at gmail.com> wrote:
On Aug 9, 2012, at 9:14 PM, David Winsemius <dwinsemius at comcast.net> wrote:
On Aug 9, 2012, at 4:56 PM, Zhang, Peng wrote:
Dear all, I had a R segmentation fault, and then invoked debug mode and ran step by step.
2. Why does the same function behave differently under debug and regular mode?
I cannot help you there.
Though a reproducible segfault is certainly worth a bug report if you can do so, in debug or regular modes. You may wish to search stackoverflow for tips on how to make a great reproducible example in R. Michael
********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.